I can't imagine McCain running a second term, but I don't think he's ever committed to one only.

Btw, has there ever been a President who, going in, says they only want to run one term???? I can't imagine it would be wise for any candidate to admit. Then again, considering McCain's age, maybe most people would find it acceptable? Then again, if they do, it show's they worry about him being too old to rule.
Anyway, as far as Palin goes, she is he "Obama" of the Republican party (at least I think that's how the Republicans feel). She's peaked IMHO, but holding back from interiews is only buying time. There has to be a reason......and we know what that must be. Bottom line, thus far, it still looks like a very very close race.
TIS